Open-hearth furnaces and charging means



0ct. 4, 1966 F. A. ETT, R ErAL 3,27,756

0PEN-HEARTH PURNACES AND CHARGING MEANS Fi1ed March 6 1964 2 Sheetssheet1 Oct. 4 1966 F. ETT,R ETAL 3 276,756

0PEN-HEARTH FURNACES AND CHARGING MEANS 2 Sheets-Sheet a F1ed March 61964

1. AN OPEN-HEARTH FURNACE HAVING A CHARGING WALL AND CHARGING OPENINGSIN SAID CHARGING WALL THROUGH WHICH SOLID RAW MATERIALS ARE CHARGED INTOTHE HEARTH OF THE FURNACE, A BUILT-UP BANK ON THE END OF SAID CHARGINGWALL IN SAID FURNACE AND A CHUTE FOR CHARGING HOT METAL INTO THEFURNACE, SAID CHUTE COMPRISING A REFRACTORY-LINED STEEL LIP AND AREFRACTORY-LINED TROUGH A FIRST PORTION OF WHICH EXTENDS FROM SAID LIPTHROUGH THE CHARGING WALL OF THE FURNACE COMMUNICATING AND INTEGRAL WITHA SECOND PORTION IN THE BANK OF THE FURNACE, SAID HOT METAL CHUTE BEINGINTEGRAL WITH THE CHARGING WALL OF THE FURNACE.